[all-commits] [llvm/llvm-project] 245186: [GlobalISel] Add `or_and_xor_to_or` pattern from S...

[Osman Yasar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 245186ef957cb1d98ad1444a49e3bd307cbaa2a4
      https://github.com/llvm/llvm-project/commit/245186ef957cb1d98ad1444a49e3bd307cbaa2a4
  Author: Osman Yasar <osmanyas05 at gmail.com>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    A llvm/test/CodeGen/AArch64/GlobalISel/combine-or-and-xor.ll
    A llvm/test/CodeGen/AArch64/GlobalISel/combine-or-and-xor.mir

  Log Message:
  -----------
  [GlobalISel] Add `or_and_xor_to_or` pattern from SelectionDAG (#201108)

This PR adds the `fold (or (and X, (xor Y, -1)), Y) -> (or X, Y)`
pattern from SelectionDAG to GlobalISel.

---------

Co-authored-by: Matt Arsenault <arsenm2 at gmail.com>



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